The complex ray expansion is a simple approach for target scattering field computation, whose effectiveness depends on the systematic investigation of its error.
复射线展开法是计算目标散射场的一种简捷的方法，其可靠性有赖于对误差特性的系统研究。
The results of simulation indicate that this new approach has a better accuracy than the traditional Kalman filter and strong tracking Kalman filter in the field of maneuvering target tracking.
仿真结果表明，该改进滤波器跟踪机动目标的精度高于常规卡尔曼滤波器和强跟踪卡尔曼滤波器。
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